Honeywell Humidifier TrueSTEAM Manual

The Honeywell TrueSTEAM Humidifier is a whole-home steam humidification system designed to integrate with your HVAC system, providing precise humidity control for improved indoor air quality and comfort. It features automatic humidity sensing, digital control, easy installation, low maintenance, and compatibility with most forced-air heating and cooling systems. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to HVAC System 7. Operation and Maintenance 8. Advanced Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Steam Generator, Control Panel, Humidistat, Drain Assembly, Water Panel, Installation Kit.

Feature	Description
Steam Generator	Produces pure, clean steam for humidification
Digital Control Panel	For setting desired humidity levels and monitoring system status
Automatic Humidistat	Senses indoor humidity and adjusts output automatically
Drain Assembly	Removes unused water and minerals from the system
Water Panel	Easy-to-replace evaporator panel
Installation Kit	Includes all necessary hardware for HVAC integration
Low Water Sensor	Automatically shuts off if water level is too low
Overheat Protection	Safety feature to prevent overheating
LED Status Indicators	Show system operation and alert for maintenance
Compatible with HVAC	Works with most forced-air heating and cooling systems

Installation

Unpack and inspect contents. Ensure you have proper tools and location.

Choose location: Install near HVAC system, on a level surface, with access to water and drain.
Connect to water supply: Use included tubing and saddle valve to connect to cold water line.
Connect to drain: Attach drain hose to suitable drain or condensate pump.
Connect to HVAC: Install steam distribution tube into ductwork per manual instructions.
Electrical connection: Plug into dedicated 120V outlet (check model for voltage requirements).

WARNING! Installation should be performed by a qualified technician. Ensure power is off during installation.

First-Time Setup

Power on humidifier; follow control panel prompts.

Set desired humidity: Use UP/DOWN buttons to set target humidity (typically 35-45%).
Calibrate humidistat: Allow system to run for 24 hours for automatic calibration.
Test operation: Run system and check for steam production and proper drainage.
Program settings: Set fan control (continuous or intermittent) if applicable.

CAUTION! Do not set humidity too high to prevent condensation on windows.

Specifications

Model Series: TrueSTEAM Humidifier.
Coverage: Up to 4,000 sq. ft. (depending on model).
Output: Adjustable steam output up to 0.75 gallons per hour.
Water Connection: 1/4" copper or plastic tubing.
Drain Connection: 5/8" ID hose.
Power Requirements: 120V AC, 60Hz, 15A circuit.
Control: Digital humidistat with automatic sensing.
Operating Temp: 40°F to 120°F (4°C to 49°C).
Warranty: Limited 5-year warranty on steam generator.

Controls and Settings

Access settings via digital control panel. Buttons: POWER, UP, DOWN, MENU, RESET.

Control Panel Display: Shows current humidity, set point, system status, and alerts.

Humidity Setting: Adjust between 15% and 60% relative humidity. Fan Control: Set to work with HVAC fan (ON with heat/cool or continuous). System Test: Initiate manual test cycle. Reset: Reset maintenance timer after service. Advanced Settings: Access installer menu for calibration and system parameters (password protected).

Connecting to HVAC System

Steam Distribution: Tube installed in supply duct. Control Wiring: Connect to HVAC control board for automatic operation.

Turn off HVAC power before making connections.
Install steam distribution tube in supply duct downstream from heat source.
Connect control wires to HVAC terminals (usually G and C).
Ensure proper sealing to prevent air leaks.

Tip: Consult HVAC professional if unsure about wiring connections.

Operation and Maintenance

System operates automatically based on humidistat setting.

Daily: System runs as needed when HVAC fan operates.
Monthly: Check drain line for proper flow and clear any blockages.
Seasonal: Replace water panel at beginning of each heating season.
Annual: Descale steam generator if in hard water area; inspect all connections.
Filter: No air filter required; water panel acts as evaporative media.

WARNING! Always turn off power before performing any maintenance.

Advanced Features

Automatic Humidity Control: Adjusts output based on outdoor temperature. Diagnostics: System monitors performance and alerts for maintenance. Remote Monitoring: Some models compatible with smart home systems.

Care & Cleaning

Turn off power before cleaning. Clean exterior with damp cloth only.

Descaling: Use approved descaling solution if mineral buildup occurs. Follow instructions in maintenance manual.

CAUTION! Do not use harsh chemicals or abrasives. Never immerse unit in water.

Regulatory Information

UL Listed: Meets safety standards for humidification equipment. FCC Part 15: Class B digital device; complies with interference limits. Copyright © Honeywell International Inc. For support, visit www.honeywellhome.com or contact 1-800-468-1502.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No steam production	Power/water supply	Check power connection; ensure water valve is open; verify humidistat setting.
Low humidity	Settings/water panel	Increase humidity setting; replace water panel; check for duct leaks.
Water leaking	Connections/drain	Tighten all connections; ensure drain line is not blocked.
Error code on display	System fault	Refer to error code chart in manual; reset system if applicable.
Unit cycles on/off frequently	Oversized/calibration	Check sizing for home; recalibrate humidistat.
Mineral buildup	Hard water	Descale steam generator; consider water softener.

Reset: Press and hold RESET button for 5 seconds to clear error codes.

Service: 1-800-468-1502; www.honeywellhome.com